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1. |
Find the product. 3 × 8 |
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A. |
38 |
B. |
11 |
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C. |
24 |
D. |
5 |
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Hint |
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2. |
Find the sum. 
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A. |
19,799 |
B. |
19,769 |
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C. |
20,879 |
D. |
15,145 |
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Hint |
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3. |
Use mental multiplication. 3 × 400 |
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A. |
12,000 |
B. |
1,200 |
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C. |
120 |
D. |
3,400 |
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Hint |
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4. |
Use mental multiplication. 100 × 24 |
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A. |
24,000 |
B. |
2,400 |
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C. |
240 |
D. |
124 |
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Hint |
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5. |
Tell which equation represents a way to find the product of 4 × 31. |
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A. |
4 × (31 − 1) |
B. |
4 × (4 + 31) |
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C. |
4 × (30 − 1) |
D. |
4 × (30 + 1) |
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Hint |
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6. |
Find the product of 8 × 14 using mental math. |
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A. |
84 |
B. |
94 |
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C. |
122 |
D. |
112 |
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Hint |
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7. |
Tell which equation is an estimate for 
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A. |
50 × 10 = 500 |
B. |
50 × 20 = 1,000 |
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C. |
50 + 10 = 60 |
D. |
60 × 10 = 600 |
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Hint |
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8. |
An athlete exercises for 78 minutes every day. Tell which equation can be used to estimate how long the athlete exercises in one week. |
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A. |
80 × 7 = 560 |
B. |
100 ×7 = 700 |
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C. |
80 + 7 = 87 |
D. |
70 × 10 = 700 |
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Hint |
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9. |
Find the product. 
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A. |
56 |
B. |
159 |
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C. |
533 |
D. |
169 |
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Hint |
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10. |
Find 7 × 52. |
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A. |
59 |
B. |
752 |
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C. |
354 |
D. |
364 |
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Hint |
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11. |
Find 78 × 23. |
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A. |
1,794 |
B. |
7,823 |
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C. |
101 |
D. |
1,424 |
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Hint |
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12. |
As part of her training, an athlete runs 11 kilometers each day. How many kilometers does she run in 24 days? |
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A. |
2,640 km |
B. |
242 km |
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C. |
64 km |
D. |
264 km |
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Hint |
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13. |
Identify the property. (6 × 9) × 15 = 6 × (9 × 15) |
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A. |
Distributive Property |
B. |
Commutative Property |
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C. |
Identity Property |
D. |
Associative Property |
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Hint |
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14. |
Find the product mentally. 5 × 13 × 200 |
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A. |
3,600 |
B. |
13,000 |
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C. |
218 |
D. |
513,200 |
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Hint |
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15. |
Tell which equation is an estimate for 3 × $5.05. |
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A. |
3 + $5 = $8 |
B. |
$5 × 5 = $25 |
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C. |
3 × $5 = $15 |
D. |
$5 × 15 = $75 |
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Hint |
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16. |
Tell which equation is an estimate for 6 × $7.89. |
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A. |
6 + $8 = $14 |
B. |
6 × $8 = $48 |
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C. |
5 × $5 = $25 |
D. |
10 × $10 = $100 |
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Hint |
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